Home / 7,931.61-10,945.44-4,574.40

Finding the Fourth Proportional to 7,931.61, 10,945.44 and 4,574.40

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Solution

The fourth proportional to 7,931.61, 10,945.44 and 4,574.40 is: 6,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.61 : 10,945.44 = 4,574.40 : x
  2. Step 2: Convert to fraction form
    7,931.61/10,945.44 = 4,574.40/x
  3. Step 3: Cross multiply
    7,931.61x = 10,945.44 × 4,574.40
  4. Step 4: Simplify right side
    7,931.61x = 50,068,820.74
  5. Step 5: Solve for x
    x = 50,068,820.74/7,931.61
  6. Step 6: Final answer
    x = 6,312.57

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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.