Home / 1,573.02-2,171.30-910.14

Finding the Fourth Proportional to 1,573.02, 2,171.30 and 910.14

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Solution

The fourth proportional to 1,573.02, 2,171.30 and 910.14 is: 1,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.02 : 2,171.30 = 910.14 : x
  2. Step 2: Convert to fraction form
    1,573.02/2,171.30 = 910.14/x
  3. Step 3: Cross multiply
    1,573.02x = 2,171.30 × 910.14
  4. Step 4: Simplify right side
    1,573.02x = 1,976,186.98
  5. Step 5: Solve for x
    x = 1,976,186.98/1,573.02
  6. Step 6: Final answer
    x = 1,256.30

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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.