Home / 2,802.48-3,867.37-1,543.65

Finding the Fourth Proportional to 2,802.48, 3,867.37 and 1,543.65

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Solution

The fourth proportional to 2,802.48, 3,867.37 and 1,543.65 is: 2,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.48 : 3,867.37 = 1,543.65 : x
  2. Step 2: Convert to fraction form
    2,802.48/3,867.37 = 1,543.65/x
  3. Step 3: Cross multiply
    2,802.48x = 3,867.37 × 1,543.65
  4. Step 4: Simplify right side
    2,802.48x = 5,969,865.70
  5. Step 5: Solve for x
    x = 5,969,865.70/2,802.48
  6. Step 6: Final answer
    x = 2,130.21

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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.