Home / 4,187.79-5,779.02-2,419.68

Finding the Fourth Proportional to 4,187.79, 5,779.02 and 2,419.68

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Solution

The fourth proportional to 4,187.79, 5,779.02 and 2,419.68 is: 3,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.79 : 5,779.02 = 2,419.68 : x
  2. Step 2: Convert to fraction form
    4,187.79/5,779.02 = 2,419.68/x
  3. Step 3: Cross multiply
    4,187.79x = 5,779.02 × 2,419.68
  4. Step 4: Simplify right side
    4,187.79x = 13,983,379.11
  5. Step 5: Solve for x
    x = 13,983,379.11/4,187.79
  6. Step 6: Final answer
    x = 3,339.08

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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.