Home / 1,452.10-2,178.53-630.19

Finding the Fourth Proportional to 1,452.10, 2,178.53 and 630.19

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Solution

The fourth proportional to 1,452.10, 2,178.53 and 630.19 is: 945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.10 : 2,178.53 = 630.19 : x
  2. Step 2: Convert to fraction form
    1,452.10/2,178.53 = 630.19/x
  3. Step 3: Cross multiply
    1,452.10x = 2,178.53 × 630.19
  4. Step 4: Simplify right side
    1,452.10x = 1,372,887.82
  5. Step 5: Solve for x
    x = 1,372,887.82/1,452.10
  6. Step 6: Final answer
    x = 945.45

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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.