Home / 2,919.12-4,380.47-1,533.45

Finding the Fourth Proportional to 2,919.12, 4,380.47 and 1,533.45

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Solution

The fourth proportional to 2,919.12, 4,380.47 and 1,533.45 is: 2,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.12 : 4,380.47 = 1,533.45 : x
  2. Step 2: Convert to fraction form
    2,919.12/4,380.47 = 1,533.45/x
  3. Step 3: Cross multiply
    2,919.12x = 4,380.47 × 1,533.45
  4. Step 4: Simplify right side
    2,919.12x = 6,717,209.82
  5. Step 5: Solve for x
    x = 6,717,209.82/2,919.12
  6. Step 6: Final answer
    x = 2,301.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.