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Finding the Fourth Proportional to 5,872.95, 8,809.34 and 1,430.64

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Solution

The fourth proportional to 5,872.95, 8,809.34 and 1,430.64 is: 2,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.95 : 8,809.34 = 1,430.64 : x
  2. Step 2: Convert to fraction form
    5,872.95/8,809.34 = 1,430.64/x
  3. Step 3: Cross multiply
    5,872.95x = 8,809.34 × 1,430.64
  4. Step 4: Simplify right side
    5,872.95x = 12,602,994.18
  5. Step 5: Solve for x
    x = 12,602,994.18/5,872.95
  6. Step 6: Final answer
    x = 2,145.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.