Home / 1,216.52-1,675.32-1,158.20

Finding the Fourth Proportional to 1,216.52, 1,675.32 and 1,158.20

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Solution

The fourth proportional to 1,216.52, 1,675.32 and 1,158.20 is: 1,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.52 : 1,675.32 = 1,158.20 : x
  2. Step 2: Convert to fraction form
    1,216.52/1,675.32 = 1,158.20/x
  3. Step 3: Cross multiply
    1,216.52x = 1,675.32 × 1,158.20
  4. Step 4: Simplify right side
    1,216.52x = 1,940,349.19
  5. Step 5: Solve for x
    x = 1,940,349.19/1,216.52
  6. Step 6: Final answer
    x = 1,595.00

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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.