Home / 1,589.02-2,192.85-880.90

Finding the Fourth Proportional to 1,589.02, 2,192.85 and 880.90

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Solution

The fourth proportional to 1,589.02, 2,192.85 and 880.90 is: 1,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.02 : 2,192.85 = 880.90 : x
  2. Step 2: Convert to fraction form
    1,589.02/2,192.85 = 880.90/x
  3. Step 3: Cross multiply
    1,589.02x = 2,192.85 × 880.90
  4. Step 4: Simplify right side
    1,589.02x = 1,931,681.57
  5. Step 5: Solve for x
    x = 1,931,681.57/1,589.02
  6. Step 6: Final answer
    x = 1,215.64

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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.