Home / 2,400.75-3,582.28-2,155.32

Finding the Fourth Proportional to 2,400.75, 3,582.28 and 2,155.32

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Solution

The fourth proportional to 2,400.75, 3,582.28 and 2,155.32 is: 3,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.75 : 3,582.28 = 2,155.32 : x
  2. Step 2: Convert to fraction form
    2,400.75/3,582.28 = 2,155.32/x
  3. Step 3: Cross multiply
    2,400.75x = 3,582.28 × 2,155.32
  4. Step 4: Simplify right side
    2,400.75x = 7,720,962.42
  5. Step 5: Solve for x
    x = 7,720,962.42/2,400.75
  6. Step 6: Final answer
    x = 3,216.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.