Home / 1,931.10-2,895.20-904.86

Finding the Fourth Proportional to 1,931.10, 2,895.20 and 904.86

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Solution

The fourth proportional to 1,931.10, 2,895.20 and 904.86 is: 1,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.10 : 2,895.20 = 904.86 : x
  2. Step 2: Convert to fraction form
    1,931.10/2,895.20 = 904.86/x
  3. Step 3: Cross multiply
    1,931.10x = 2,895.20 × 904.86
  4. Step 4: Simplify right side
    1,931.10x = 2,619,750.67
  5. Step 5: Solve for x
    x = 2,619,750.67/1,931.10
  6. Step 6: Final answer
    x = 1,356.61

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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.