Home / 2,558.90-3,532.45-1,929.68

Finding the Fourth Proportional to 2,558.90, 3,532.45 and 1,929.68

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Solution

The fourth proportional to 2,558.90, 3,532.45 and 1,929.68 is: 2,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.90 : 3,532.45 = 1,929.68 : x
  2. Step 2: Convert to fraction form
    2,558.90/3,532.45 = 1,929.68/x
  3. Step 3: Cross multiply
    2,558.90x = 3,532.45 × 1,929.68
  4. Step 4: Simplify right side
    2,558.90x = 6,816,475.63
  5. Step 5: Solve for x
    x = 6,816,475.63/2,558.90
  6. Step 6: Final answer
    x = 2,663.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.