Home / 3,061.65-4,224.35-1,802.76

Finding the Fourth Proportional to 3,061.65, 4,224.35 and 1,802.76

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Solution

The fourth proportional to 3,061.65, 4,224.35 and 1,802.76 is: 2,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.65 : 4,224.35 = 1,802.76 : x
  2. Step 2: Convert to fraction form
    3,061.65/4,224.35 = 1,802.76/x
  3. Step 3: Cross multiply
    3,061.65x = 4,224.35 × 1,802.76
  4. Step 4: Simplify right side
    3,061.65x = 7,615,480.19
  5. Step 5: Solve for x
    x = 7,615,480.19/3,061.65
  6. Step 6: Final answer
    x = 2,487.38

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Half scale
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Double scale
Find fourth proportional to 3,062.65, 4,225.72 and 1,803.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.