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Finding the Fourth Proportional to 6,640.40, 9,960.53 and 1,710.02

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Solution

The fourth proportional to 6,640.40, 9,960.53 and 1,710.02 is: 2,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.40 : 9,960.53 = 1,710.02 : x
  2. Step 2: Convert to fraction form
    6,640.40/9,960.53 = 1,710.02/x
  3. Step 3: Cross multiply
    6,640.40x = 9,960.53 × 1,710.02
  4. Step 4: Simplify right side
    6,640.40x = 17,032,647.16
  5. Step 5: Solve for x
    x = 17,032,647.16/6,640.40
  6. Step 6: Final answer
    x = 2,565.01

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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.