Home / 7,931.79-10,945.58-4,574.75

Finding the Fourth Proportional to 7,931.79, 10,945.58 and 4,574.75

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Solution

The fourth proportional to 7,931.79, 10,945.58 and 4,574.75 is: 6,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.79 : 10,945.58 = 4,574.75 : x
  2. Step 2: Convert to fraction form
    7,931.79/10,945.58 = 4,574.75/x
  3. Step 3: Cross multiply
    7,931.79x = 10,945.58 × 4,574.75
  4. Step 4: Simplify right side
    7,931.79x = 50,073,214.50
  5. Step 5: Solve for x
    x = 50,073,214.50/7,931.79
  6. Step 6: Final answer
    x = 6,312.98

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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.