Home / 4,774.40-7,161.12-1,312.16

Finding the Fourth Proportional to 4,774.40, 7,161.12 and 1,312.16

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Solution

The fourth proportional to 4,774.40, 7,161.12 and 1,312.16 is: 1,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.40 : 7,161.12 = 1,312.16 : x
  2. Step 2: Convert to fraction form
    4,774.40/7,161.12 = 1,312.16/x
  3. Step 3: Cross multiply
    4,774.40x = 7,161.12 × 1,312.16
  4. Step 4: Simplify right side
    4,774.40x = 9,396,535.22
  5. Step 5: Solve for x
    x = 9,396,535.22/4,774.40
  6. Step 6: Final answer
    x = 1,968.11

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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.