Home / 5,240.76-7,861.14-1,345.16

Finding the Fourth Proportional to 5,240.76, 7,861.14 and 1,345.16

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Solution

The fourth proportional to 5,240.76, 7,861.14 and 1,345.16 is: 2,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.76 : 7,861.14 = 1,345.16 : x
  2. Step 2: Convert to fraction form
    5,240.76/7,861.14 = 1,345.16/x
  3. Step 3: Cross multiply
    5,240.76x = 7,861.14 × 1,345.16
  4. Step 4: Simplify right side
    5,240.76x = 10,574,491.08
  5. Step 5: Solve for x
    x = 10,574,491.08/5,240.76
  6. Step 6: Final answer
    x = 2,017.74

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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.