Home / 4,656.24-6,987.40-4,280.81

Finding the Fourth Proportional to 4,656.24, 6,987.40 and 4,280.81

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Solution

The fourth proportional to 4,656.24, 6,987.40 and 4,280.81 is: 6,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,656.24 : 6,987.40 = 4,280.81 : x
  2. Step 2: Convert to fraction form
    4,656.24/6,987.40 = 4,280.81/x
  3. Step 3: Cross multiply
    4,656.24x = 6,987.40 × 4,280.81
  4. Step 4: Simplify right side
    4,656.24x = 29,911,686.15
  5. Step 5: Solve for x
    x = 29,911,686.15/4,656.24
  6. Step 6: Final answer
    x = 6,424.00

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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.