Home / 3,139.16-4,332.08-1,813.05

Finding the Fourth Proportional to 3,139.16, 4,332.08 and 1,813.05

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Solution

The fourth proportional to 3,139.16, 4,332.08 and 1,813.05 is: 2,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.16 : 4,332.08 = 1,813.05 : x
  2. Step 2: Convert to fraction form
    3,139.16/4,332.08 = 1,813.05/x
  3. Step 3: Cross multiply
    3,139.16x = 4,332.08 × 1,813.05
  4. Step 4: Simplify right side
    3,139.16x = 7,854,282.18
  5. Step 5: Solve for x
    x = 7,854,282.18/3,139.16
  6. Step 6: Final answer
    x = 2,502.04

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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.