Home / 1,434.48-2,150.96-612.28

Finding the Fourth Proportional to 1,434.48, 2,150.96 and 612.28

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Solution

The fourth proportional to 1,434.48, 2,150.96 and 612.28 is: 918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.48 : 2,150.96 = 612.28 : x
  2. Step 2: Convert to fraction form
    1,434.48/2,150.96 = 612.28/x
  3. Step 3: Cross multiply
    1,434.48x = 2,150.96 × 612.28
  4. Step 4: Simplify right side
    1,434.48x = 1,316,989.79
  5. Step 5: Solve for x
    x = 1,316,989.79/1,434.48
  6. Step 6: Final answer
    x = 918.10

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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.