Home / 1,440.95-2,161.02-400.70

Finding the Fourth Proportional to 1,440.95, 2,161.02 and 400.70

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Solution

The fourth proportional to 1,440.95, 2,161.02 and 400.70 is: 600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.95 : 2,161.02 = 400.70 : x
  2. Step 2: Convert to fraction form
    1,440.95/2,161.02 = 400.70/x
  3. Step 3: Cross multiply
    1,440.95x = 2,161.02 × 400.70
  4. Step 4: Simplify right side
    1,440.95x = 865,920.71
  5. Step 5: Solve for x
    x = 865,920.71/1,440.95
  6. Step 6: Final answer
    x = 600.94

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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.