Home / 6,587.60-9,881.40-4,389.20

Finding the Fourth Proportional to 6,587.60, 9,881.40 and 4,389.20

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Solution

The fourth proportional to 6,587.60, 9,881.40 and 4,389.20 is: 6,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,587.60 : 9,881.40 = 4,389.20 : x
  2. Step 2: Convert to fraction form
    6,587.60/9,881.40 = 4,389.20/x
  3. Step 3: Cross multiply
    6,587.60x = 9,881.40 × 4,389.20
  4. Step 4: Simplify right side
    6,587.60x = 43,371,440.88
  5. Step 5: Solve for x
    x = 43,371,440.88/6,587.60
  6. Step 6: Final answer
    x = 6,583.80

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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.