Home / 1,671.02-2,307.06-1,140.79

Finding the Fourth Proportional to 1,671.02, 2,307.06 and 1,140.79

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Solution

The fourth proportional to 1,671.02, 2,307.06 and 1,140.79 is: 1,575.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.02 : 2,307.06 = 1,140.79 : x
  2. Step 2: Convert to fraction form
    1,671.02/2,307.06 = 1,140.79/x
  3. Step 3: Cross multiply
    1,671.02x = 2,307.06 × 1,140.79
  4. Step 4: Simplify right side
    1,671.02x = 2,631,865.21
  5. Step 5: Solve for x
    x = 2,631,865.21/1,671.02
  6. Step 6: Final answer
    x = 1,575.01

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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.