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Finding the Fourth Proportional to 5,007.02, 7,510.70 and 1,720.08

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Solution

The fourth proportional to 5,007.02, 7,510.70 and 1,720.08 is: 2,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.02 : 7,510.70 = 1,720.08 : x
  2. Step 2: Convert to fraction form
    5,007.02/7,510.70 = 1,720.08/x
  3. Step 3: Cross multiply
    5,007.02x = 7,510.70 × 1,720.08
  4. Step 4: Simplify right side
    5,007.02x = 12,918,996.26
  5. Step 5: Solve for x
    x = 12,918,996.26/5,007.02
  6. Step 6: Final answer
    x = 2,580.18

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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.