Home / 1,528.60-2,295.30-880.60

Finding the Fourth Proportional to 1,528.60, 2,295.30 and 880.60

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Solution

The fourth proportional to 1,528.60, 2,295.30 and 880.60 is: 1,322.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.60 : 2,295.30 = 880.60 : x
  2. Step 2: Convert to fraction form
    1,528.60/2,295.30 = 880.60/x
  3. Step 3: Cross multiply
    1,528.60x = 2,295.30 × 880.60
  4. Step 4: Simplify right side
    1,528.60x = 2,021,241.18
  5. Step 5: Solve for x
    x = 2,021,241.18/1,528.60
  6. Step 6: Final answer
    x = 1,322.28

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1.5x scale

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.