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Finding the Fourth Proportional to 7,654.77, 10,570.23 and 4,827.20

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Solution

The fourth proportional to 7,654.77, 10,570.23 and 4,827.20 is: 6,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,654.77 : 10,570.23 = 4,827.20 : x
  2. Step 2: Convert to fraction form
    7,654.77/10,570.23 = 4,827.20/x
  3. Step 3: Cross multiply
    7,654.77x = 10,570.23 × 4,827.20
  4. Step 4: Simplify right side
    7,654.77x = 51,024,561.40
  5. Step 5: Solve for x
    x = 51,024,561.40/7,654.77
  6. Step 6: Final answer
    x = 6,665.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.