Home / 1,880.89-2,595.92-1,386.11

Finding the Fourth Proportional to 1,880.89, 2,595.92 and 1,386.11

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Solution

The fourth proportional to 1,880.89, 2,595.92 and 1,386.11 is: 1,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.89 : 2,595.92 = 1,386.11 : x
  2. Step 2: Convert to fraction form
    1,880.89/2,595.92 = 1,386.11/x
  3. Step 3: Cross multiply
    1,880.89x = 2,595.92 × 1,386.11
  4. Step 4: Simplify right side
    1,880.89x = 3,598,230.23
  5. Step 5: Solve for x
    x = 3,598,230.23/1,880.89
  6. Step 6: Final answer
    x = 1,913.05

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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.