Home / 3,140.02-4,710.07-948.77

Finding the Fourth Proportional to 3,140.02, 4,710.07 and 948.77

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Solution

The fourth proportional to 3,140.02, 4,710.07 and 948.77 is: 1,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.02 : 4,710.07 = 948.77 : x
  2. Step 2: Convert to fraction form
    3,140.02/4,710.07 = 948.77/x
  3. Step 3: Cross multiply
    3,140.02x = 4,710.07 × 948.77
  4. Step 4: Simplify right side
    3,140.02x = 4,468,749.56
  5. Step 5: Solve for x
    x = 4,468,749.56/3,140.02
  6. Step 6: Final answer
    x = 1,423.16

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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.