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Finding the Fourth Proportional to 2,341.13, 3,510.53 and 780.59

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Solution

The fourth proportional to 2,341.13, 3,510.53 and 780.59 is: 1,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.13 : 3,510.53 = 780.59 : x
  2. Step 2: Convert to fraction form
    2,341.13/3,510.53 = 780.59/x
  3. Step 3: Cross multiply
    2,341.13x = 3,510.53 × 780.59
  4. Step 4: Simplify right side
    2,341.13x = 2,740,263.16
  5. Step 5: Solve for x
    x = 2,740,263.16/2,341.13
  6. Step 6: Final answer
    x = 1,170.49

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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.