Home / 1,920.23-2,649.95-1,069.50

Finding the Fourth Proportional to 1,920.23, 2,649.95 and 1,069.50

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Solution

The fourth proportional to 1,920.23, 2,649.95 and 1,069.50 is: 1,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.23 : 2,649.95 = 1,069.50 : x
  2. Step 2: Convert to fraction form
    1,920.23/2,649.95 = 1,069.50/x
  3. Step 3: Cross multiply
    1,920.23x = 2,649.95 × 1,069.50
  4. Step 4: Simplify right side
    1,920.23x = 2,834,116.18
  5. Step 5: Solve for x
    x = 2,834,116.18/1,920.23
  6. Step 6: Final answer
    x = 1,475.93

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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.