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Finding the Fourth Proportional to 4,779.52, 7,130.46 and 4,521.18

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Solution

The fourth proportional to 4,779.52, 7,130.46 and 4,521.18 is: 6,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.52 : 7,130.46 = 4,521.18 : x
  2. Step 2: Convert to fraction form
    4,779.52/7,130.46 = 4,521.18/x
  3. Step 3: Cross multiply
    4,779.52x = 7,130.46 × 4,521.18
  4. Step 4: Simplify right side
    4,779.52x = 32,238,093.14
  5. Step 5: Solve for x
    x = 32,238,093.14/4,779.52
  6. Step 6: Final answer
    x = 6,745.05

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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.