Home / 1,528.13-2,291.76-554.01

Finding the Fourth Proportional to 1,528.13, 2,291.76 and 554.01

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Solution

The fourth proportional to 1,528.13, 2,291.76 and 554.01 is: 830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.13 : 2,291.76 = 554.01 : x
  2. Step 2: Convert to fraction form
    1,528.13/2,291.76 = 554.01/x
  3. Step 3: Cross multiply
    1,528.13x = 2,291.76 × 554.01
  4. Step 4: Simplify right side
    1,528.13x = 1,269,657.96
  5. Step 5: Solve for x
    x = 1,269,657.96/1,528.13
  6. Step 6: Final answer
    x = 830.86

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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.