Home / 5,307.17-7,962.78-1,977.45

Finding the Fourth Proportional to 5,307.17, 7,962.78 and 1,977.45

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Solution

The fourth proportional to 5,307.17, 7,962.78 and 1,977.45 is: 2,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.17 : 7,962.78 = 1,977.45 : x
  2. Step 2: Convert to fraction form
    5,307.17/7,962.78 = 1,977.45/x
  3. Step 3: Cross multiply
    5,307.17x = 7,962.78 × 1,977.45
  4. Step 4: Simplify right side
    5,307.17x = 15,745,999.31
  5. Step 5: Solve for x
    x = 15,745,999.31/5,307.17
  6. Step 6: Final answer
    x = 2,966.93

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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.