Home / 1,341.30-1,850.22-947.64

Finding the Fourth Proportional to 1,341.30, 1,850.22 and 947.64

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Solution

The fourth proportional to 1,341.30, 1,850.22 and 947.64 is: 1,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.30 : 1,850.22 = 947.64 : x
  2. Step 2: Convert to fraction form
    1,341.30/1,850.22 = 947.64/x
  3. Step 3: Cross multiply
    1,341.30x = 1,850.22 × 947.64
  4. Step 4: Simplify right side
    1,341.30x = 1,753,342.48
  5. Step 5: Solve for x
    x = 1,753,342.48/1,341.30
  6. Step 6: Final answer
    x = 1,307.20

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1.5x scale

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.