Home / 4,700.14-6,478.58-3,187.20

Finding the Fourth Proportional to 4,700.14, 6,478.58 and 3,187.20

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Solution

The fourth proportional to 4,700.14, 6,478.58 and 3,187.20 is: 4,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.14 : 6,478.58 = 3,187.20 : x
  2. Step 2: Convert to fraction form
    4,700.14/6,478.58 = 3,187.20/x
  3. Step 3: Cross multiply
    4,700.14x = 6,478.58 × 3,187.20
  4. Step 4: Simplify right side
    4,700.14x = 20,648,530.18
  5. Step 5: Solve for x
    x = 20,648,530.18/4,700.14
  6. Step 6: Final answer
    x = 4,393.17

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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.