Home / 1,612.86-2,225.67-904.62

Finding the Fourth Proportional to 1,612.86, 2,225.67 and 904.62

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Solution

The fourth proportional to 1,612.86, 2,225.67 and 904.62 is: 1,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.86 : 2,225.67 = 904.62 : x
  2. Step 2: Convert to fraction form
    1,612.86/2,225.67 = 904.62/x
  3. Step 3: Cross multiply
    1,612.86x = 2,225.67 × 904.62
  4. Step 4: Simplify right side
    1,612.86x = 2,013,372.21
  5. Step 5: Solve for x
    x = 2,013,372.21/1,612.86
  6. Step 6: Final answer
    x = 1,248.32

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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.