Home / 1,182.02-1,631.15-740.16

Finding the Fourth Proportional to 1,182.02, 1,631.15 and 740.16

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Solution

The fourth proportional to 1,182.02, 1,631.15 and 740.16 is: 1,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.02 : 1,631.15 = 740.16 : x
  2. Step 2: Convert to fraction form
    1,182.02/1,631.15 = 740.16/x
  3. Step 3: Cross multiply
    1,182.02x = 1,631.15 × 740.16
  4. Step 4: Simplify right side
    1,182.02x = 1,207,313.83
  5. Step 5: Solve for x
    x = 1,207,313.83/1,182.02
  6. Step 6: Final answer
    x = 1,021.40

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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.