Home / 2,545.08-3,810.15-1,931.19

Finding the Fourth Proportional to 2,545.08, 3,810.15 and 1,931.19

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Solution

The fourth proportional to 2,545.08, 3,810.15 and 1,931.19 is: 2,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.08 : 3,810.15 = 1,931.19 : x
  2. Step 2: Convert to fraction form
    2,545.08/3,810.15 = 1,931.19/x
  3. Step 3: Cross multiply
    2,545.08x = 3,810.15 × 1,931.19
  4. Step 4: Simplify right side
    2,545.08x = 7,358,123.58
  5. Step 5: Solve for x
    x = 7,358,123.58/2,545.08
  6. Step 6: Final answer
    x = 2,891.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.