Home / 1,695.28-2,339.76-1,170.88

Finding the Fourth Proportional to 1,695.28, 2,339.76 and 1,170.88

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Solution

The fourth proportional to 1,695.28, 2,339.76 and 1,170.88 is: 1,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.28 : 2,339.76 = 1,170.88 : x
  2. Step 2: Convert to fraction form
    1,695.28/2,339.76 = 1,170.88/x
  3. Step 3: Cross multiply
    1,695.28x = 2,339.76 × 1,170.88
  4. Step 4: Simplify right side
    1,695.28x = 2,739,578.19
  5. Step 5: Solve for x
    x = 2,739,578.19/1,695.28
  6. Step 6: Final answer
    x = 1,616.00

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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.