Home / 4,774.72-7,161.90-1,312.08

Finding the Fourth Proportional to 4,774.72, 7,161.90 and 1,312.08

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Solution

The fourth proportional to 4,774.72, 7,161.90 and 1,312.08 is: 1,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.72 : 7,161.90 = 1,312.08 : x
  2. Step 2: Convert to fraction form
    4,774.72/7,161.90 = 1,312.08/x
  3. Step 3: Cross multiply
    4,774.72x = 7,161.90 × 1,312.08
  4. Step 4: Simplify right side
    4,774.72x = 9,396,985.75
  5. Step 5: Solve for x
    x = 9,396,985.75/4,774.72
  6. Step 6: Final answer
    x = 1,968.07

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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.