Home / 2,988.47-4,484.75-1,040.67

Finding the Fourth Proportional to 2,988.47, 4,484.75 and 1,040.67

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Solution

The fourth proportional to 2,988.47, 4,484.75 and 1,040.67 is: 1,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.47 : 4,484.75 = 1,040.67 : x
  2. Step 2: Convert to fraction form
    2,988.47/4,484.75 = 1,040.67/x
  3. Step 3: Cross multiply
    2,988.47x = 4,484.75 × 1,040.67
  4. Step 4: Simplify right side
    2,988.47x = 4,667,150.79
  5. Step 5: Solve for x
    x = 4,667,150.79/2,988.47
  6. Step 6: Final answer
    x = 1,561.72

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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.