Home / 4,749.42-7,125.45-1,977.40

Finding the Fourth Proportional to 4,749.42, 7,125.45 and 1,977.40

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Solution

The fourth proportional to 4,749.42, 7,125.45 and 1,977.40 is: 2,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.42 : 7,125.45 = 1,977.40 : x
  2. Step 2: Convert to fraction form
    4,749.42/7,125.45 = 1,977.40/x
  3. Step 3: Cross multiply
    4,749.42x = 7,125.45 × 1,977.40
  4. Step 4: Simplify right side
    4,749.42x = 14,089,864.83
  5. Step 5: Solve for x
    x = 14,089,864.83/4,749.42
  6. Step 6: Final answer
    x = 2,966.65

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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.