Home / 5,629.32-8,445-1,931.91

Finding the Fourth Proportional to 5,629.32, 8,445 and 1,931.91

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Solution

The fourth proportional to 5,629.32, 8,445 and 1,931.91 is: 2,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.32 : 8,445 = 1,931.91 : x
  2. Step 2: Convert to fraction form
    5,629.32/8,445 = 1,931.91/x
  3. Step 3: Cross multiply
    5,629.32x = 8,445 × 1,931.91
  4. Step 4: Simplify right side
    5,629.32x = 16,314,979.95
  5. Step 5: Solve for x
    x = 16,314,979.95/5,629.32
  6. Step 6: Final answer
    x = 2,898.22

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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.