Home / 2,931.11-4,395.81-1,175.55

Finding the Fourth Proportional to 2,931.11, 4,395.81 and 1,175.55

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Solution

The fourth proportional to 2,931.11, 4,395.81 and 1,175.55 is: 1,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.11 : 4,395.81 = 1,175.55 : x
  2. Step 2: Convert to fraction form
    2,931.11/4,395.81 = 1,175.55/x
  3. Step 3: Cross multiply
    2,931.11x = 4,395.81 × 1,175.55
  4. Step 4: Simplify right side
    2,931.11x = 5,167,475.76
  5. Step 5: Solve for x
    x = 5,167,475.76/2,931.11
  6. Step 6: Final answer
    x = 1,762.98

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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.