Home / 2,121.48-2,932.74-1,875.24

Finding the Fourth Proportional to 2,121.48, 2,932.74 and 1,875.24

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Solution

The fourth proportional to 2,121.48, 2,932.74 and 1,875.24 is: 2,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.48 : 2,932.74 = 1,875.24 : x
  2. Step 2: Convert to fraction form
    2,121.48/2,932.74 = 1,875.24/x
  3. Step 3: Cross multiply
    2,121.48x = 2,932.74 × 1,875.24
  4. Step 4: Simplify right side
    2,121.48x = 5,499,591.36
  5. Step 5: Solve for x
    x = 5,499,591.36/2,121.48
  6. Step 6: Final answer
    x = 2,592.34

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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.