Home / 6,459.73-9,689.64-1,779.99

Finding the Fourth Proportional to 6,459.73, 9,689.64 and 1,779.99

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Solution

The fourth proportional to 6,459.73, 9,689.64 and 1,779.99 is: 2,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.73 : 9,689.64 = 1,779.99 : x
  2. Step 2: Convert to fraction form
    6,459.73/9,689.64 = 1,779.99/x
  3. Step 3: Cross multiply
    6,459.73x = 9,689.64 × 1,779.99
  4. Step 4: Simplify right side
    6,459.73x = 17,247,483.81
  5. Step 5: Solve for x
    x = 17,247,483.81/6,459.73
  6. Step 6: Final answer
    x = 2,670.00

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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.