Home / 5,345.34-7,376.72-2,987.64

Finding the Fourth Proportional to 5,345.34, 7,376.72 and 2,987.64

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Solution

The fourth proportional to 5,345.34, 7,376.72 and 2,987.64 is: 4,123.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.34 : 7,376.72 = 2,987.64 : x
  2. Step 2: Convert to fraction form
    5,345.34/7,376.72 = 2,987.64/x
  3. Step 3: Cross multiply
    5,345.34x = 7,376.72 × 2,987.64
  4. Step 4: Simplify right side
    5,345.34x = 22,038,968.80
  5. Step 5: Solve for x
    x = 22,038,968.80/5,345.34
  6. Step 6: Final answer
    x = 4,123.02

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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.