Home / 1,779.12-2,669.16-1,607.76

Finding the Fourth Proportional to 1,779.12, 2,669.16 and 1,607.76

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Solution

The fourth proportional to 1,779.12, 2,669.16 and 1,607.76 is: 2,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.12 : 2,669.16 = 1,607.76 : x
  2. Step 2: Convert to fraction form
    1,779.12/2,669.16 = 1,607.76/x
  3. Step 3: Cross multiply
    1,779.12x = 2,669.16 × 1,607.76
  4. Step 4: Simplify right side
    1,779.12x = 4,291,368.68
  5. Step 5: Solve for x
    x = 4,291,368.68/1,779.12
  6. Step 6: Final answer
    x = 2,412.07

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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.