Home / 2,913.40-4,368.31-1,430.74

Finding the Fourth Proportional to 2,913.40, 4,368.31 and 1,430.74

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Solution

The fourth proportional to 2,913.40, 4,368.31 and 1,430.74 is: 2,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.40 : 4,368.31 = 1,430.74 : x
  2. Step 2: Convert to fraction form
    2,913.40/4,368.31 = 1,430.74/x
  3. Step 3: Cross multiply
    2,913.40x = 4,368.31 × 1,430.74
  4. Step 4: Simplify right side
    2,913.40x = 6,249,915.85
  5. Step 5: Solve for x
    x = 6,249,915.85/2,913.40
  6. Step 6: Final answer
    x = 2,145.23

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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.