Home / 1,655.76-2,284.86-947.57

Finding the Fourth Proportional to 1,655.76, 2,284.86 and 947.57

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Solution

The fourth proportional to 1,655.76, 2,284.86 and 947.57 is: 1,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.76 : 2,284.86 = 947.57 : x
  2. Step 2: Convert to fraction form
    1,655.76/2,284.86 = 947.57/x
  3. Step 3: Cross multiply
    1,655.76x = 2,284.86 × 947.57
  4. Step 4: Simplify right side
    1,655.76x = 2,165,064.79
  5. Step 5: Solve for x
    x = 2,165,064.79/1,655.76
  6. Step 6: Final answer
    x = 1,307.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.