Home / 1,345.88-2,009.68-1,180.10

Finding the Fourth Proportional to 1,345.88, 2,009.68 and 1,180.10

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Solution

The fourth proportional to 1,345.88, 2,009.68 and 1,180.10 is: 1,762.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.88 : 2,009.68 = 1,180.10 : x
  2. Step 2: Convert to fraction form
    1,345.88/2,009.68 = 1,180.10/x
  3. Step 3: Cross multiply
    1,345.88x = 2,009.68 × 1,180.10
  4. Step 4: Simplify right side
    1,345.88x = 2,371,623.37
  5. Step 5: Solve for x
    x = 2,371,623.37/1,345.88
  6. Step 6: Final answer
    x = 1,762.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.