Home / 3,159.80-4,365.06-3,030.20

Finding the Fourth Proportional to 3,159.80, 4,365.06 and 3,030.20

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Solution

The fourth proportional to 3,159.80, 4,365.06 and 3,030.20 is: 4,186.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.80 : 4,365.06 = 3,030.20 : x
  2. Step 2: Convert to fraction form
    3,159.80/4,365.06 = 3,030.20/x
  3. Step 3: Cross multiply
    3,159.80x = 4,365.06 × 3,030.20
  4. Step 4: Simplify right side
    3,159.80x = 13,227,004.81
  5. Step 5: Solve for x
    x = 13,227,004.81/3,159.80
  6. Step 6: Final answer
    x = 4,186.03

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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.