Home / 4,575.12-6,860.40-1,977.12

Finding the Fourth Proportional to 4,575.12, 6,860.40 and 1,977.12

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Solution

The fourth proportional to 4,575.12, 6,860.40 and 1,977.12 is: 2,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,575.12 : 6,860.40 = 1,977.12 : x
  2. Step 2: Convert to fraction form
    4,575.12/6,860.40 = 1,977.12/x
  3. Step 3: Cross multiply
    4,575.12x = 6,860.40 × 1,977.12
  4. Step 4: Simplify right side
    4,575.12x = 13,563,834.05
  5. Step 5: Solve for x
    x = 13,563,834.05/4,575.12
  6. Step 6: Final answer
    x = 2,964.69

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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.