Home / 5,575.08-8,311.32-5,312.64

Finding the Fourth Proportional to 5,575.08, 8,311.32 and 5,312.64

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Solution

The fourth proportional to 5,575.08, 8,311.32 and 5,312.64 is: 7,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.08 : 8,311.32 = 5,312.64 : x
  2. Step 2: Convert to fraction form
    5,575.08/8,311.32 = 5,312.64/x
  3. Step 3: Cross multiply
    5,575.08x = 8,311.32 × 5,312.64
  4. Step 4: Simplify right side
    5,575.08x = 44,155,051.08
  5. Step 5: Solve for x
    x = 44,155,051.08/5,575.08
  6. Step 6: Final answer
    x = 7,920.07

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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.