Home / 1,528.06-2,291.60-603.40

Finding the Fourth Proportional to 1,528.06, 2,291.60 and 603.40

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Solution

The fourth proportional to 1,528.06, 2,291.60 and 603.40 is: 904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.06 : 2,291.60 = 603.40 : x
  2. Step 2: Convert to fraction form
    1,528.06/2,291.60 = 603.40/x
  3. Step 3: Cross multiply
    1,528.06x = 2,291.60 × 603.40
  4. Step 4: Simplify right side
    1,528.06x = 1,382,751.44
  5. Step 5: Solve for x
    x = 1,382,751.44/1,528.06
  6. Step 6: Final answer
    x = 904.91

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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.