Home / 5,421.79-7,482.09-2,937.79

Finding the Fourth Proportional to 5,421.79, 7,482.09 and 2,937.79

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Solution

The fourth proportional to 5,421.79, 7,482.09 and 2,937.79 is: 4,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.79 : 7,482.09 = 2,937.79 : x
  2. Step 2: Convert to fraction form
    5,421.79/7,482.09 = 2,937.79/x
  3. Step 3: Cross multiply
    5,421.79x = 7,482.09 × 2,937.79
  4. Step 4: Simplify right side
    5,421.79x = 21,980,809.18
  5. Step 5: Solve for x
    x = 21,980,809.18/5,421.79
  6. Step 6: Final answer
    x = 4,054.16

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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.