Home / 5,285.17-7,927.76-1,587.79

Finding the Fourth Proportional to 5,285.17, 7,927.76 and 1,587.79

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Solution

The fourth proportional to 5,285.17, 7,927.76 and 1,587.79 is: 2,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.17 : 7,927.76 = 1,587.79 : x
  2. Step 2: Convert to fraction form
    5,285.17/7,927.76 = 1,587.79/x
  3. Step 3: Cross multiply
    5,285.17x = 7,927.76 × 1,587.79
  4. Step 4: Simplify right side
    5,285.17x = 12,587,618.05
  5. Step 5: Solve for x
    x = 12,587,618.05/5,285.17
  6. Step 6: Final answer
    x = 2,381.69

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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.