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Finding the Fourth Proportional to 2,875.42, 4,313.02 and 927.67

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Solution

The fourth proportional to 2,875.42, 4,313.02 and 927.67 is: 1,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.42 : 4,313.02 = 927.67 : x
  2. Step 2: Convert to fraction form
    2,875.42/4,313.02 = 927.67/x
  3. Step 3: Cross multiply
    2,875.42x = 4,313.02 × 927.67
  4. Step 4: Simplify right side
    2,875.42x = 4,001,059.26
  5. Step 5: Solve for x
    x = 4,001,059.26/2,875.42
  6. Step 6: Final answer
    x = 1,391.47

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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.