Home / 4,121.53-5,681.48-2,862.65

Finding the Fourth Proportional to 4,121.53, 5,681.48 and 2,862.65

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Solution

The fourth proportional to 4,121.53, 5,681.48 and 2,862.65 is: 3,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.53 : 5,681.48 = 2,862.65 : x
  2. Step 2: Convert to fraction form
    4,121.53/5,681.48 = 2,862.65/x
  3. Step 3: Cross multiply
    4,121.53x = 5,681.48 × 2,862.65
  4. Step 4: Simplify right side
    4,121.53x = 16,264,088.61
  5. Step 5: Solve for x
    x = 16,264,088.61/4,121.53
  6. Step 6: Final answer
    x = 3,946.13

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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.