Home / 1,779.02-2,664.80-1,430.46

Finding the Fourth Proportional to 1,779.02, 2,664.80 and 1,430.46

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Solution

The fourth proportional to 1,779.02, 2,664.80 and 1,430.46 is: 2,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.02 : 2,664.80 = 1,430.46 : x
  2. Step 2: Convert to fraction form
    1,779.02/2,664.80 = 1,430.46/x
  3. Step 3: Cross multiply
    1,779.02x = 2,664.80 × 1,430.46
  4. Step 4: Simplify right side
    1,779.02x = 3,811,903.38
  5. Step 5: Solve for x
    x = 3,811,903.38/1,779.02
  6. Step 6: Final answer
    x = 2,142.70

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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.