Home / 5,421.51-7,482.91-3,065.02

Finding the Fourth Proportional to 5,421.51, 7,482.91 and 3,065.02

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Solution

The fourth proportional to 5,421.51, 7,482.91 and 3,065.02 is: 4,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.51 : 7,482.91 = 3,065.02 : x
  2. Step 2: Convert to fraction form
    5,421.51/7,482.91 = 3,065.02/x
  3. Step 3: Cross multiply
    5,421.51x = 7,482.91 × 3,065.02
  4. Step 4: Simplify right side
    5,421.51x = 22,935,268.81
  5. Step 5: Solve for x
    x = 22,935,268.81/5,421.51
  6. Step 6: Final answer
    x = 4,230.42

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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.