Home / 5,285.25-7,927.57-1,587.40

Finding the Fourth Proportional to 5,285.25, 7,927.57 and 1,587.40

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Solution

The fourth proportional to 5,285.25, 7,927.57 and 1,587.40 is: 2,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.25 : 7,927.57 = 1,587.40 : x
  2. Step 2: Convert to fraction form
    5,285.25/7,927.57 = 1,587.40/x
  3. Step 3: Cross multiply
    5,285.25x = 7,927.57 × 1,587.40
  4. Step 4: Simplify right side
    5,285.25x = 12,584,206.78
  5. Step 5: Solve for x
    x = 12,584,206.78/5,285.25
  6. Step 6: Final answer
    x = 2,381.01

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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.