Home / 4,680.19-6,459.70-2,978.35

Finding the Fourth Proportional to 4,680.19, 6,459.70 and 2,978.35

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Solution

The fourth proportional to 4,680.19, 6,459.70 and 2,978.35 is: 4,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.19 : 6,459.70 = 2,978.35 : x
  2. Step 2: Convert to fraction form
    4,680.19/6,459.70 = 2,978.35/x
  3. Step 3: Cross multiply
    4,680.19x = 6,459.70 × 2,978.35
  4. Step 4: Simplify right side
    4,680.19x = 19,239,247.50
  5. Step 5: Solve for x
    x = 19,239,247.50/4,680.19
  6. Step 6: Final answer
    x = 4,110.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.