Home / 3,148.83-4,345.02-1,889.94

Finding the Fourth Proportional to 3,148.83, 4,345.02 and 1,889.94

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Solution

The fourth proportional to 3,148.83, 4,345.02 and 1,889.94 is: 2,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.83 : 4,345.02 = 1,889.94 : x
  2. Step 2: Convert to fraction form
    3,148.83/4,345.02 = 1,889.94/x
  3. Step 3: Cross multiply
    3,148.83x = 4,345.02 × 1,889.94
  4. Step 4: Simplify right side
    3,148.83x = 8,211,827.10
  5. Step 5: Solve for x
    x = 8,211,827.10/3,148.83
  6. Step 6: Final answer
    x = 2,607.90

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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.