Home / 1,525.59-2,103.46-1,289.12

Finding the Fourth Proportional to 1,525.59, 2,103.46 and 1,289.12

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Solution

The fourth proportional to 1,525.59, 2,103.46 and 1,289.12 is: 1,777.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.59 : 2,103.46 = 1,289.12 : x
  2. Step 2: Convert to fraction form
    1,525.59/2,103.46 = 1,289.12/x
  3. Step 3: Cross multiply
    1,525.59x = 2,103.46 × 1,289.12
  4. Step 4: Simplify right side
    1,525.59x = 2,711,598.62
  5. Step 5: Solve for x
    x = 2,711,598.62/1,525.59
  6. Step 6: Final answer
    x = 1,777.41

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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.