Home / 1,182.08-1,631.64-710.32

Finding the Fourth Proportional to 1,182.08, 1,631.64 and 710.32

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Solution

The fourth proportional to 1,182.08, 1,631.64 and 710.32 is: 980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.08 : 1,631.64 = 710.32 : x
  2. Step 2: Convert to fraction form
    1,182.08/1,631.64 = 710.32/x
  3. Step 3: Cross multiply
    1,182.08x = 1,631.64 × 710.32
  4. Step 4: Simplify right side
    1,182.08x = 1,158,986.52
  5. Step 5: Solve for x
    x = 1,158,986.52/1,182.08
  6. Step 6: Final answer
    x = 980.46

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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.