Home / 5,242.42-7,862.37-1,543.65

Finding the Fourth Proportional to 5,242.42, 7,862.37 and 1,543.65

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Solution

The fourth proportional to 5,242.42, 7,862.37 and 1,543.65 is: 2,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.42 : 7,862.37 = 1,543.65 : x
  2. Step 2: Convert to fraction form
    5,242.42/7,862.37 = 1,543.65/x
  3. Step 3: Cross multiply
    5,242.42x = 7,862.37 × 1,543.65
  4. Step 4: Simplify right side
    5,242.42x = 12,136,747.45
  5. Step 5: Solve for x
    x = 12,136,747.45/5,242.42
  6. Step 6: Final answer
    x = 2,315.10

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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.