Home / 2,154.02-2,972.55-1,409.24

Finding the Fourth Proportional to 2,154.02, 2,972.55 and 1,409.24

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Solution

The fourth proportional to 2,154.02, 2,972.55 and 1,409.24 is: 1,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.02 : 2,972.55 = 1,409.24 : x
  2. Step 2: Convert to fraction form
    2,154.02/2,972.55 = 1,409.24/x
  3. Step 3: Cross multiply
    2,154.02x = 2,972.55 × 1,409.24
  4. Step 4: Simplify right side
    2,154.02x = 4,189,036.36
  5. Step 5: Solve for x
    x = 4,189,036.36/2,154.02
  6. Step 6: Final answer
    x = 1,944.75

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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.