Home / 1,775.66-2,657.98-1,386.79

Finding the Fourth Proportional to 1,775.66, 2,657.98 and 1,386.79

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Solution

The fourth proportional to 1,775.66, 2,657.98 and 1,386.79 is: 2,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.66 : 2,657.98 = 1,386.79 : x
  2. Step 2: Convert to fraction form
    1,775.66/2,657.98 = 1,386.79/x
  3. Step 3: Cross multiply
    1,775.66x = 2,657.98 × 1,386.79
  4. Step 4: Simplify right side
    1,775.66x = 3,686,055.17
  5. Step 5: Solve for x
    x = 3,686,055.17/1,775.66
  6. Step 6: Final answer
    x = 2,075.88

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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.