Home / 2,130.08-2,941.74-1,898.16

Finding the Fourth Proportional to 2,130.08, 2,941.74 and 1,898.16

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Solution

The fourth proportional to 2,130.08, 2,941.74 and 1,898.16 is: 2,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.08 : 2,941.74 = 1,898.16 : x
  2. Step 2: Convert to fraction form
    2,130.08/2,941.74 = 1,898.16/x
  3. Step 3: Cross multiply
    2,130.08x = 2,941.74 × 1,898.16
  4. Step 4: Simplify right side
    2,130.08x = 5,583,893.20
  5. Step 5: Solve for x
    x = 5,583,893.20/2,130.08
  6. Step 6: Final answer
    x = 2,621.45

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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.