Home / 1,731.74-2,389.68-945.77

Finding the Fourth Proportional to 1,731.74, 2,389.68 and 945.77

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Solution

The fourth proportional to 1,731.74, 2,389.68 and 945.77 is: 1,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.74 : 2,389.68 = 945.77 : x
  2. Step 2: Convert to fraction form
    1,731.74/2,389.68 = 945.77/x
  3. Step 3: Cross multiply
    1,731.74x = 2,389.68 × 945.77
  4. Step 4: Simplify right side
    1,731.74x = 2,260,075.71
  5. Step 5: Solve for x
    x = 2,260,075.71/1,731.74
  6. Step 6: Final answer
    x = 1,305.09

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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.