Home / 4,710.90-7,065.96-1,378.88

Finding the Fourth Proportional to 4,710.90, 7,065.96 and 1,378.88

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Solution

The fourth proportional to 4,710.90, 7,065.96 and 1,378.88 is: 2,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,710.90 : 7,065.96 = 1,378.88 : x
  2. Step 2: Convert to fraction form
    4,710.90/7,065.96 = 1,378.88/x
  3. Step 3: Cross multiply
    4,710.90x = 7,065.96 × 1,378.88
  4. Step 4: Simplify right side
    4,710.90x = 9,743,104.03
  5. Step 5: Solve for x
    x = 9,743,104.03/4,710.90
  6. Step 6: Final answer
    x = 2,068.21

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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.