Home / 5,420.51-7,480.19-3,030.53

Finding the Fourth Proportional to 5,420.51, 7,480.19 and 3,030.53

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Solution

The fourth proportional to 5,420.51, 7,480.19 and 3,030.53 is: 4,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.51 : 7,480.19 = 3,030.53 : x
  2. Step 2: Convert to fraction form
    5,420.51/7,480.19 = 3,030.53/x
  3. Step 3: Cross multiply
    5,420.51x = 7,480.19 × 3,030.53
  4. Step 4: Simplify right side
    5,420.51x = 22,668,887.65
  5. Step 5: Solve for x
    x = 22,668,887.65/5,420.51
  6. Step 6: Final answer
    x = 4,182.06

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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.