Home / 1,423.20-1,963.26-925.32

Finding the Fourth Proportional to 1,423.20, 1,963.26 and 925.32

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Solution

The fourth proportional to 1,423.20, 1,963.26 and 925.32 is: 1,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.20 : 1,963.26 = 925.32 : x
  2. Step 2: Convert to fraction form
    1,423.20/1,963.26 = 925.32/x
  3. Step 3: Cross multiply
    1,423.20x = 1,963.26 × 925.32
  4. Step 4: Simplify right side
    1,423.20x = 1,816,643.74
  5. Step 5: Solve for x
    x = 1,816,643.74/1,423.20
  6. Step 6: Final answer
    x = 1,276.45

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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.