Home / 4,779.20-6,598.48-2,987.36

Finding the Fourth Proportional to 4,779.20, 6,598.48 and 2,987.36

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Solution

The fourth proportional to 4,779.20, 6,598.48 and 2,987.36 is: 4,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.20 : 6,598.48 = 2,987.36 : x
  2. Step 2: Convert to fraction form
    4,779.20/6,598.48 = 2,987.36/x
  3. Step 3: Cross multiply
    4,779.20x = 6,598.48 × 2,987.36
  4. Step 4: Simplify right side
    4,779.20x = 19,712,035.21
  5. Step 5: Solve for x
    x = 19,712,035.21/4,779.20
  6. Step 6: Final answer
    x = 4,124.55

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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.