Home / 1,069.28-1,603.88-1,048.76

Finding the Fourth Proportional to 1,069.28, 1,603.88 and 1,048.76

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Solution

The fourth proportional to 1,069.28, 1,603.88 and 1,048.76 is: 1,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069.28 : 1,603.88 = 1,048.76 : x
  2. Step 2: Convert to fraction form
    1,069.28/1,603.88 = 1,048.76/x
  3. Step 3: Cross multiply
    1,069.28x = 1,603.88 × 1,048.76
  4. Step 4: Simplify right side
    1,069.28x = 1,682,085.19
  5. Step 5: Solve for x
    x = 1,682,085.19/1,069.28
  6. Step 6: Final answer
    x = 1,573.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.