Home / 2,124.90-2,929.91-1,946.30

Finding the Fourth Proportional to 2,124.90, 2,929.91 and 1,946.30

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Solution

The fourth proportional to 2,124.90, 2,929.91 and 1,946.30 is: 2,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.90 : 2,929.91 = 1,946.30 : x
  2. Step 2: Convert to fraction form
    2,124.90/2,929.91 = 1,946.30/x
  3. Step 3: Cross multiply
    2,124.90x = 2,929.91 × 1,946.30
  4. Step 4: Simplify right side
    2,124.90x = 5,702,459.45
  5. Step 5: Solve for x
    x = 5,702,459.45/2,124.90
  6. Step 6: Final answer
    x = 2,683.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.