Home / 2,130.42-2,937.54-1,709.40

Finding the Fourth Proportional to 2,130.42, 2,937.54 and 1,709.40

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Solution

The fourth proportional to 2,130.42, 2,937.54 and 1,709.40 is: 2,357.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.42 : 2,937.54 = 1,709.40 : x
  2. Step 2: Convert to fraction form
    2,130.42/2,937.54 = 1,709.40/x
  3. Step 3: Cross multiply
    2,130.42x = 2,937.54 × 1,709.40
  4. Step 4: Simplify right side
    2,130.42x = 5,021,430.88
  5. Step 5: Solve for x
    x = 5,021,430.88/2,130.42
  6. Step 6: Final answer
    x = 2,357.01

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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.