Home / 2,107.02-3,159.77-625.80

Finding the Fourth Proportional to 2,107.02, 3,159.77 and 625.80

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Solution

The fourth proportional to 2,107.02, 3,159.77 and 625.80 is: 938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.02 : 3,159.77 = 625.80 : x
  2. Step 2: Convert to fraction form
    2,107.02/3,159.77 = 625.80/x
  3. Step 3: Cross multiply
    2,107.02x = 3,159.77 × 625.80
  4. Step 4: Simplify right side
    2,107.02x = 1,977,384.07
  5. Step 5: Solve for x
    x = 1,977,384.07/2,107.02
  6. Step 6: Final answer
    x = 938.47

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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.