Home / 5,275.13-7,915.32-3,521.07

Finding the Fourth Proportional to 5,275.13, 7,915.32 and 3,521.07

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Solution

The fourth proportional to 5,275.13, 7,915.32 and 3,521.07 is: 5,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.13 : 7,915.32 = 3,521.07 : x
  2. Step 2: Convert to fraction form
    5,275.13/7,915.32 = 3,521.07/x
  3. Step 3: Cross multiply
    5,275.13x = 7,915.32 × 3,521.07
  4. Step 4: Simplify right side
    5,275.13x = 27,870,395.79
  5. Step 5: Solve for x
    x = 27,870,395.79/5,275.13
  6. Step 6: Final answer
    x = 5,283.36

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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.