Home / 5,075.47-7,612.77-1,377.61

Finding the Fourth Proportional to 5,075.47, 7,612.77 and 1,377.61

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Solution

The fourth proportional to 5,075.47, 7,612.77 and 1,377.61 is: 2,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.47 : 7,612.77 = 1,377.61 : x
  2. Step 2: Convert to fraction form
    5,075.47/7,612.77 = 1,377.61/x
  3. Step 3: Cross multiply
    5,075.47x = 7,612.77 × 1,377.61
  4. Step 4: Simplify right side
    5,075.47x = 10,487,428.08
  5. Step 5: Solve for x
    x = 10,487,428.08/5,075.47
  6. Step 6: Final answer
    x = 2,066.30

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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.