Home / 1,627.04-2,244.74-918.78

Finding the Fourth Proportional to 1,627.04, 2,244.74 and 918.78

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Solution

The fourth proportional to 1,627.04, 2,244.74 and 918.78 is: 1,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.04 : 2,244.74 = 918.78 : x
  2. Step 2: Convert to fraction form
    1,627.04/2,244.74 = 918.78/x
  3. Step 3: Cross multiply
    1,627.04x = 2,244.74 × 918.78
  4. Step 4: Simplify right side
    1,627.04x = 2,062,417.62
  5. Step 5: Solve for x
    x = 2,062,417.62/1,627.04
  6. Step 6: Final answer
    x = 1,267.59

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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.