Home / 1,545.20-2,313.10-1,056.88

Finding the Fourth Proportional to 1,545.20, 2,313.10 and 1,056.88

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Solution

The fourth proportional to 1,545.20, 2,313.10 and 1,056.88 is: 1,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.20 : 2,313.10 = 1,056.88 : x
  2. Step 2: Convert to fraction form
    1,545.20/2,313.10 = 1,056.88/x
  3. Step 3: Cross multiply
    1,545.20x = 2,313.10 × 1,056.88
  4. Step 4: Simplify right side
    1,545.20x = 2,444,669.13
  5. Step 5: Solve for x
    x = 2,444,669.13/1,545.20
  6. Step 6: Final answer
    x = 1,582.11

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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.