Home / 1,445.04-2,168.55-579.42

Finding the Fourth Proportional to 1,445.04, 2,168.55 and 579.42

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Solution

The fourth proportional to 1,445.04, 2,168.55 and 579.42 is: 869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.04 : 2,168.55 = 579.42 : x
  2. Step 2: Convert to fraction form
    1,445.04/2,168.55 = 579.42/x
  3. Step 3: Cross multiply
    1,445.04x = 2,168.55 × 579.42
  4. Step 4: Simplify right side
    1,445.04x = 1,256,501.24
  5. Step 5: Solve for x
    x = 1,256,501.24/1,445.04
  6. Step 6: Final answer
    x = 869.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.