Home / 1,440.18-2,161.10-607.18

Finding the Fourth Proportional to 1,440.18, 2,161.10 and 607.18

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Solution

The fourth proportional to 1,440.18, 2,161.10 and 607.18 is: 911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.18 : 2,161.10 = 607.18 : x
  2. Step 2: Convert to fraction form
    1,440.18/2,161.10 = 607.18/x
  3. Step 3: Cross multiply
    1,440.18x = 2,161.10 × 607.18
  4. Step 4: Simplify right side
    1,440.18x = 1,312,176.70
  5. Step 5: Solve for x
    x = 1,312,176.70/1,440.18
  6. Step 6: Final answer
    x = 911.12

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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.