Home / 1,614.31-2,421.47-444.32

Finding the Fourth Proportional to 1,614.31, 2,421.47 and 444.32

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Solution

The fourth proportional to 1,614.31, 2,421.47 and 444.32 is: 666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.31 : 2,421.47 = 444.32 : x
  2. Step 2: Convert to fraction form
    1,614.31/2,421.47 = 444.32/x
  3. Step 3: Cross multiply
    1,614.31x = 2,421.47 × 444.32
  4. Step 4: Simplify right side
    1,614.31x = 1,075,911.38
  5. Step 5: Solve for x
    x = 1,075,911.38/1,614.31
  6. Step 6: Final answer
    x = 666.48

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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.