Home / 3,116.56-4,300.80-1,700.20

Finding the Fourth Proportional to 3,116.56, 4,300.80 and 1,700.20

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Solution

The fourth proportional to 3,116.56, 4,300.80 and 1,700.20 is: 2,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.56 : 4,300.80 = 1,700.20 : x
  2. Step 2: Convert to fraction form
    3,116.56/4,300.80 = 1,700.20/x
  3. Step 3: Cross multiply
    3,116.56x = 4,300.80 × 1,700.20
  4. Step 4: Simplify right side
    3,116.56x = 7,312,220.16
  5. Step 5: Solve for x
    x = 7,312,220.16/3,116.56
  6. Step 6: Final answer
    x = 2,346.25

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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.