Home / 1,880.40-2,586.35-1,541.85

Finding the Fourth Proportional to 1,880.40, 2,586.35 and 1,541.85

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Solution

The fourth proportional to 1,880.40, 2,586.35 and 1,541.85 is: 2,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.40 : 2,586.35 = 1,541.85 : x
  2. Step 2: Convert to fraction form
    1,880.40/2,586.35 = 1,541.85/x
  3. Step 3: Cross multiply
    1,880.40x = 2,586.35 × 1,541.85
  4. Step 4: Simplify right side
    1,880.40x = 3,987,756.04
  5. Step 5: Solve for x
    x = 3,987,756.04/1,880.40
  6. Step 6: Final answer
    x = 2,120.70

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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.