Home / 1,612.95-2,225.87-904.79

Finding the Fourth Proportional to 1,612.95, 2,225.87 and 904.79

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Solution

The fourth proportional to 1,612.95, 2,225.87 and 904.79 is: 1,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.95 : 2,225.87 = 904.79 : x
  2. Step 2: Convert to fraction form
    1,612.95/2,225.87 = 904.79/x
  3. Step 3: Cross multiply
    1,612.95x = 2,225.87 × 904.79
  4. Step 4: Simplify right side
    1,612.95x = 2,013,929.26
  5. Step 5: Solve for x
    x = 2,013,929.26/1,612.95
  6. Step 6: Final answer
    x = 1,248.60

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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.