Home / 2,390.65-3,303.66-1,800.16

Finding the Fourth Proportional to 2,390.65, 3,303.66 and 1,800.16

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Solution

The fourth proportional to 2,390.65, 3,303.66 and 1,800.16 is: 2,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.65 : 3,303.66 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    2,390.65/3,303.66 = 1,800.16/x
  3. Step 3: Cross multiply
    2,390.65x = 3,303.66 × 1,800.16
  4. Step 4: Simplify right side
    2,390.65x = 5,947,116.59
  5. Step 5: Solve for x
    x = 5,947,116.59/2,390.65
  6. Step 6: Final answer
    x = 2,487.66

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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.