Home / 5,557.40-8,334.36-1,858.77

Finding the Fourth Proportional to 5,557.40, 8,334.36 and 1,858.77

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Solution

The fourth proportional to 5,557.40, 8,334.36 and 1,858.77 is: 2,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.40 : 8,334.36 = 1,858.77 : x
  2. Step 2: Convert to fraction form
    5,557.40/8,334.36 = 1,858.77/x
  3. Step 3: Cross multiply
    5,557.40x = 8,334.36 × 1,858.77
  4. Step 4: Simplify right side
    5,557.40x = 15,491,658.34
  5. Step 5: Solve for x
    x = 15,491,658.34/5,557.40
  6. Step 6: Final answer
    x = 2,787.57

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1.5x scale

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.