Home / 1,612.70-2,225.37-904.57

Finding the Fourth Proportional to 1,612.70, 2,225.37 and 904.57

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Solution

The fourth proportional to 1,612.70, 2,225.37 and 904.57 is: 1,248.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.70 : 2,225.37 = 904.57 : x
  2. Step 2: Convert to fraction form
    1,612.70/2,225.37 = 904.57/x
  3. Step 3: Cross multiply
    1,612.70x = 2,225.37 × 904.57
  4. Step 4: Simplify right side
    1,612.70x = 2,013,002.33
  5. Step 5: Solve for x
    x = 2,013,002.33/1,612.70
  6. Step 6: Final answer
    x = 1,248.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.