Home / 1,529.90-2,290.40-948.86

Finding the Fourth Proportional to 1,529.90, 2,290.40 and 948.86

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Solution

The fourth proportional to 1,529.90, 2,290.40 and 948.86 is: 1,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.90 : 2,290.40 = 948.86 : x
  2. Step 2: Convert to fraction form
    1,529.90/2,290.40 = 948.86/x
  3. Step 3: Cross multiply
    1,529.90x = 2,290.40 × 948.86
  4. Step 4: Simplify right side
    1,529.90x = 2,173,268.94
  5. Step 5: Solve for x
    x = 2,173,268.94/1,529.90
  6. Step 6: Final answer
    x = 1,420.53

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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.