Home / 2,878.24-4,316.88-1,338.88

Finding the Fourth Proportional to 2,878.24, 4,316.88 and 1,338.88

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Solution

The fourth proportional to 2,878.24, 4,316.88 and 1,338.88 is: 2,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.24 : 4,316.88 = 1,338.88 : x
  2. Step 2: Convert to fraction form
    2,878.24/4,316.88 = 1,338.88/x
  3. Step 3: Cross multiply
    2,878.24x = 4,316.88 × 1,338.88
  4. Step 4: Simplify right side
    2,878.24x = 5,779,784.29
  5. Step 5: Solve for x
    x = 5,779,784.29/2,878.24
  6. Step 6: Final answer
    x = 2,008.10

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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.