Home / 1,775.54-2,673.18-1,387.64

Finding the Fourth Proportional to 1,775.54, 2,673.18 and 1,387.64

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Solution

The fourth proportional to 1,775.54, 2,673.18 and 1,387.64 is: 2,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.54 : 2,673.18 = 1,387.64 : x
  2. Step 2: Convert to fraction form
    1,775.54/2,673.18 = 1,387.64/x
  3. Step 3: Cross multiply
    1,775.54x = 2,673.18 × 1,387.64
  4. Step 4: Simplify right side
    1,775.54x = 3,709,411.50
  5. Step 5: Solve for x
    x = 3,709,411.50/1,775.54
  6. Step 6: Final answer
    x = 2,089.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.