Home / 4,455.24-6,686.10-1,858.20

Finding the Fourth Proportional to 4,455.24, 6,686.10 and 1,858.20

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Solution

The fourth proportional to 4,455.24, 6,686.10 and 1,858.20 is: 2,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.24 : 6,686.10 = 1,858.20 : x
  2. Step 2: Convert to fraction form
    4,455.24/6,686.10 = 1,858.20/x
  3. Step 3: Cross multiply
    4,455.24x = 6,686.10 × 1,858.20
  4. Step 4: Simplify right side
    4,455.24x = 12,424,111.02
  5. Step 5: Solve for x
    x = 12,424,111.02/4,455.24
  6. Step 6: Final answer
    x = 2,788.65

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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.