Home / 1,779.50-2,669.75-530.12

Finding the Fourth Proportional to 1,779.50, 2,669.75 and 530.12

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Solution

The fourth proportional to 1,779.50, 2,669.75 and 530.12 is: 795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.50 : 2,669.75 = 530.12 : x
  2. Step 2: Convert to fraction form
    1,779.50/2,669.75 = 530.12/x
  3. Step 3: Cross multiply
    1,779.50x = 2,669.75 × 530.12
  4. Step 4: Simplify right side
    1,779.50x = 1,415,287.87
  5. Step 5: Solve for x
    x = 1,415,287.87/1,779.50
  6. Step 6: Final answer
    x = 795.33

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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.