Home / 5,748.78-8,621.58-1,587.78

Finding the Fourth Proportional to 5,748.78, 8,621.58 and 1,587.78

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Solution

The fourth proportional to 5,748.78, 8,621.58 and 1,587.78 is: 2,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748.78 : 8,621.58 = 1,587.78 : x
  2. Step 2: Convert to fraction form
    5,748.78/8,621.58 = 1,587.78/x
  3. Step 3: Cross multiply
    5,748.78x = 8,621.58 × 1,587.78
  4. Step 4: Simplify right side
    5,748.78x = 13,689,172.29
  5. Step 5: Solve for x
    x = 13,689,172.29/5,748.78
  6. Step 6: Final answer
    x = 2,381.23

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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.