Home / 1,901.45-2,624.19-1,115.48

Finding the Fourth Proportional to 1,901.45, 2,624.19 and 1,115.48

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Solution

The fourth proportional to 1,901.45, 2,624.19 and 1,115.48 is: 1,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.45 : 2,624.19 = 1,115.48 : x
  2. Step 2: Convert to fraction form
    1,901.45/2,624.19 = 1,115.48/x
  3. Step 3: Cross multiply
    1,901.45x = 2,624.19 × 1,115.48
  4. Step 4: Simplify right side
    1,901.45x = 2,927,231.46
  5. Step 5: Solve for x
    x = 2,927,231.46/1,901.45
  6. Step 6: Final answer
    x = 1,539.47

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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.